Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 121 · 40 questions

What you do (Heaviest for its size sinks): 1. Pour honey slowly into the glass to fill about a quarter. 2. Pour coloured water gently down the side of the glass. 3. Pour the cooking oil gently on top and watch the layers settle. 4. Gently drop in a cork and a coin, see where each stops, and wipe up oil spills.

1. 1.🔍 Which is the odd one out? (a) honey (b) a coin (c) a cork (d) very salty water
2. 2.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) water with food colour (b) a battery cell (c) a tall clear glass (d) cooking oil
3. 3.🛟 Which rule keeps the density tower experiment safe? (a) taste each layer (b) do not lick the spoon (c) pour it on the floor (d) throw the glass
4. 4.🍯 Is a pebble denser or less dense than water? (a) less dense than water (b) denser than water
5. 5.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) in the water layer (b) on top of the oil (c) under the honey (d) in the honey layer
6. 6.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? True or false: the same glass is kept the same. (a) False (b) True
7. 7.True or false: a cork is less dense than water. (a) False (b) True
8. 8.🧺 Do we need a spoon for the density tower? (a) not needed (b) needed
9. 9.🍯 Which of these is less dense than water? (a) honey (b) air (c) a glass marble (d) a pebble
10. 10.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? Which of these is what we measure? (a) the order of pouring (b) the order of the layers (c) how much of each liquid (d) the same three liquids
11. 11.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? What do we do with “the same glass”? (a) we measure it (b) we change it (c) we keep it the same
12. 12.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? Which of these is the one thing we change? (a) the order of the layers (b) the same three liquids (c) the same glass (d) the order of pouring
13. 13.🔍 Which is the odd one out? (a) a glass marble (b) honey (c) a ping-pong ball (d) very salty water
14. 14.True or false: a battery cell is needed for the density tower. (a) False (b) True
15. 15.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) a tall clear glass (c) a spoon (d) turmeric powder
16. 16.🧺 Do we need a mirror for the density tower? (a) needed (b) not needed
17. 17.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? True or false: how much of each liquid is kept the same. (a) True (b) False
18. 18.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) honey (c) a balloon (d) cooking oil
19. 19.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? What do we do with “the order of the layers”? (a) we change it (b) we keep it the same (c) we measure it
20. 20.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? Which of these is kept the same? (a) the order of pouring (b) the order of the layers (c) the same glass
21. 21.🔍 Which is the odd one out? (a) a pebble (b) a glass marble (c) cooking oil (d) very salty water
22. 22.📘 What does “dense” mean? (a) very colourful (b) very hot (c) very thin (d) heavy for its size
23. 23.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? What do we do with “how much of each liquid”? (a) we keep it the same (b) we change it (c) we measure it
24. 24.🛟 Why should we wipe up spilled oil at once? (a) oil makes it rain (b) oil turns into honey (c) oil attracts magnets (d) spilled oil is slippery
25. 25.🧺 Which of these is needed for the density tower? (a) a balloon (b) turmeric powder (c) a magnet (d) water with food colour
26. 26.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) water with food colour (c) cooking oil (d) yeast
27. 27.🍯 Is very salty water denser or less dense than water? (a) less dense than water (b) denser than water
28. 28.🧺 Which of these is not needed for the density tower? (a) a spoon (b) a tall clear glass (c) honey (d) a magnet
29. 29.🧺 Which of these is needed for the density tower? (a) a magnet (b) a spoon (c) a balloon (d) yeast
30. 30.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? Which of these is kept the same? (a) the same three liquids (b) the order of the layers (c) the order of pouring
31. 31.True or false: yeast is not needed for the density tower. (a) True (b) False
32. 32.🫗 Why does cooking oil float on top of water? (a) oil is less dense (b) oil is sticky (c) oil is heavier (d) oil is hot
33. 33.🍯 Which of these is denser than water? (a) an ice cube (b) a coin (c) a ping-pong ball (d) cooking oil
34. 34.True or false: a magnet is needed for the density tower. (a) False (b) True
35. 35.🔍 Which is the odd one out? (a) air (b) a ping-pong ball (c) cooking oil (d) very salty water
36. 36.🍯 Is a glass marble denser or less dense than water? (a) denser than water (b) less dense than water
37. 37.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? What do we do with “the order of pouring”? (a) we change it (b) we keep it the same (c) we measure it
38. 38.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) at the very bottom (b) in the water layer (c) in the oil layer (d) on top of the oil
39. 39.True or false: water with food colour is needed for the density tower. (a) True (b) False
40. 40.🍯 Which of these is denser than water? (a) an ice cube (b) a glass marble (c) a cork (d) air

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